January 31, 2006

Master Vehicle Light Switch (MVLS)

GENERAL DESCRIPTION

• First “rugged” light switch, fits all military tactical vehicles
• The first choice for “extreme condition” military applications
• Direct replacement for old mechanical switch

Dramatic safety improvements

Features

• Ease of operation; one-hand activation
• Backlighting now available; variable intensity
• Longer life solid-state design; no moving parts
• Recessed keypad and easily readable keys to identify selected lights
• Prevents unintentional lighting selections
• Two step simple sequence ensures accurate operation
• Electronic technology provides highest operational readiness
• Efficient form, fit & function (F3) compatibility
• MVLS meets and exceeds Military 12484558 (old mechanical)
• Meets MIL-STD-1275D 100V transient

Feature 

Mechanical switch 

New MVLS
Electronic switch 

Backlight/night use Unsafe


Unsafe
Functionally unusable at night

Yes, with variable backlighting intensity

Life/reliability/durability

Moving parts wear out; not
reliable; affected by heat/cold

Solid-state/no moving parts, long life

Ease of operation

Unsafe
Complex lock/unlock with
gloves can not be operated

Simple button depressions

Mode selection sequence

Unsafe
Rotary mechanical switch must step through unwanted modes to reach the desired selection

Push a button, one step to desired position/mode

Mode selection levers

Unsafe
Difficult to move, requires a unlock/lock-

Two-button sequence to select mode

Current mechanical switch
Mil p/n 12369001

New MVLS Nartron
electronic switch
(direct replacement)
Nartron p/n 1341017
Mil p/n 12484558